package com.colbby.datahouse.db.spring;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.colbby.datahouse.message.ConnectionUtils;

public class ConnectionOpennedFilter implements Filter {

	private static Logger logger = LoggerFactory.getLogger(ConnectionOpennedFilter.class);
	
	@Override
	public void destroy() {
		
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain chain) throws IOException, ServletException {
		try {
			chain.doFilter(request, response);
		} finally {
			if(ConnectionUtils.hasConnection()) {
				if(logger.isDebugEnabled()) {
					logger.debug("关闭连接");
				}
				ConnectionUtils.release();
			}
		}
	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		
	}

}